CN2331570Y - Moving up and down stand for saddle of bicycle - Google Patents

Abstract

The utility model relates to an elevating frame for the saddle of a bicycle, comprising a supporting plate and a supporting rod which can be clamped on the frame of the bicycle, wherein, the supporting plate and the supporting rod are fixedly connected; the upper end of the supporting plate is provided with a supporting seat raised upward; two connecting rods are arranged at the upper and lower parts of the supporting seat in parallel; the rear hanging ends of the connecting rods are connected with the sleeve barrel of the saddle of the bicycle, and thus an elevating mechanism with four connecting rods is formed; the upper end of the supporting plate is also provided with a ratchet mechanism used for locking the elevation of the mechanism with four connecting rods. The elevating frame has simple structure, easy and simple assembly, can regulate the height of the saddle optionally at any moment, ensuring that a rider obtain a comfortable and reasonable sitting posture, causing tread force to be effectively used, and obtaining the effects of easy tread and labor saving.

Description

Bicycle seat board crane

The utility model relate to a kind ofly be contained on the bicycle frame, in order to the crane of regulated at will seat board height.

Used bicycle, the height of seat board regulated at will at any time in riding.But actual conditions are that because of road conditions difference, heavy burden do not wait, the cyclist always wishes and can arbitrarily adjust the height of taking seat board at any time according to specific circumstances, to obtain the best power that scrunches, reaches the labour-saving effect.

The purpose of this utility model is: design a kind of seat board crane that is assembled on the existing bicycle frame, to guarantee the rider in by bus, the height of the arbitrary adjusting seat board of energy is realized best sitting posture and is scrunched power, overcomes above-mentioned deficiency.

The purpose of this utility model is achieved in that bicycle seat board crane, comprises the back plate and the pole that are clamped on the bicycle frame, and back plate and pole are for captiveing joint.There is the bearing that raises up the back plate upper end, two connecting rods arranged side by side up and down are housed on it, and the rear overhang end of connecting rod connects bicycle seat board sleeve, forms the four-bar linkage lifting mechanism, the upper end of back plate, be provided with the escapement of locking four-link mechanism, on the outer wall of seat board sleeve upper end, the ear platform that protrudes backward arranged, ear platform lower end has the transverse groove above the sleeve diameter place, the middle part of ear platform has and the vertical longitudinal slot that communicates of transverse groove, constitutes bicycle seat board locker.

This seat board crane adopted the four-bar linkage lifting mechanism of escapement control, guaranteed the rider can be in riding the height of regulated at will seat board, it is simple and reasonable, and is easy to assembly, splendid practicality is arranged.

Bicycle seat board crane of the present utility model is provided by following examples and accompanying drawing.

Accompanying drawing is the constructional drawing according to the crane that the utility model proposes.

Below in conjunction with the detail of accompanying drawing detailed description according to the crane that the utility model proposes.

Bicycle seat board crane of the present utility model comprises the semicircle shape back plate [2] that is clamped on the vehicle frame cross bar, and its leading portion is provided with clip, is clamped in the pole [1] on the vehicle frame brace, and its rear end is provided with clip, and both are captive joint.There is the bearing [13] that raises up at the middle part of back plate upper end, the front end of bearing has arc ratchet [9], in the bearing and on the arc ratchet, through rotating shaft two connecting rods [4], [3] up and down is housed side by side, the rear overhang end of connecting rod connects bicycle seat board sleeve [5] through rotating shaft, forms the four-bar linkage lifting mechanism.Lower floor's connecting rod [3] is " √ " shape, and rotating shaft is positioned at turns the middle part that meets the place, and its front overhang end is equipped with ratchet [10] and pintle hook lock [11].One end of ratchet rotating shaft, the rocking bar [12] that can turn the ratchet rotation is housed, rocking bar one end links to each other with the lower floor connecting rod through extension spring [7], to order about ratchet and ratchet interlock, another termination mild steel rope [8] of rocking bar, the fixed pulley of mild steel rope through being contained on lower floor's connecting rod links to each other with handle on the bicycle handle, and pintle hook lock and lower floor's connecting rod are formed and are rotationally connected, its lower end can with the ratchet interlock on the ratchet, realize the lifting of locking four-bar linkage.For guaranteeing the automatism of tetrad lifting, extension spring [6] is housed in the upper end of arc ratchet, the other end of extension spring connects the rear overhang end of lower floor's connecting rod.The assembling of this crane and operate as follows: the clip that unclamps back plate [2] front end and pole [1] rear end earlier, it is clamped in respectively on the cross bar and back brace of bicycle spider, again the bicycle seat board is inserted in the seat board sleeve [5], on the outer wall of seat board sleeve upper end, the ear platform that protrudes is backward arranged, ear platform lower end has the transverse groove above the sleeve diameter place, the middle part of ear platform has and the vertical longitudinal slot that communicates of transverse groove, constitutes bicycle seat board locker, tighten the seat board iron clamp, both finished assembling.When needing the rising seat board, cocked pintle hook lock [11], four-bar linkage rises under the effect of extension spring [6], when rising to required height, pulls down pintle hook lock, and adjusting is finished.When need regulate seat board, cocked pintle hook lock [11], handle on the pulling handlebar, rocking bar [12] drive ratchet [10] and separate with ratchet [9] under the dragging of mild steel rope [8], seat board is depressed in deadweight with human body, when being depressed into desired location, unclamp the handle on the handlebar, ratchet goes the following and ratchet interlock of the effect of extension spring [7], pull down pintle hook lock again, both finished the downward modulation of seat board.

Claims (3)

1. bicycle seat board crane, it is characterized in that this crane comprises back plate and the pole that is clamped on the bicycle frame, back plate and pole are for captiveing joint, there is the bearing that raises up the back plate upper end, go to upper and lower on it two connecting rods are housed side by side, the rear overhang end of connecting rod connects bicycle seat board sleeve, forms the four-bar linkage lifting mechanism, the upper end of back plate is provided with the escapement that locks the four-bar linkage lifting mechanism.

2. bicycle seat board crane according to claim 1, it is characterized in that lower floor's connecting rod is " √ " shape, turning cylinder is positioned at and turns the middle part that meets the place, described escapement, comprise the arc ratchet that is contained in the bearing front end, be contained in the ratchet of lower floor's connecting rod front overhang end, pintle hook lock, one end of ratchet rotating shaft, the rocking bar that can turn the ratchet rotation is housed, and an end of rocking bar links to each other with lower link through extension spring, to order about ratchet and ratchet interlock, another termination mild steel rope of rocking bar, the mild steel rope links to each other with handle on the handle of bicycle through fixed pulley, the upper end dress extension spring of arc ratchet, and the other end of extension spring connects the rear overhang section of lower floor's connecting rod.

3. bicycle seat board crane according to claim 1 and 2, it is characterized in that on the outer wall of seat board sleeve upper end, the ear platform that protrudes is backward arranged, ear platform lower end has above the sleeve transverse groove through locating directly, the middle part of ear platform, have and the vertical longitudinal slot that communicates of transverse groove, constitute bicycle seat board locker.

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